DT Systems H2O Add-On Collar

Make your H2O 1810PLUS, 1820PLUS, or 1830PLUS a multi-dog system
Black is the default collar color and is recommended if you need to replace the original collar/receiver that came with your DT Systems H2O system. Orange and/or Green are available to expand your H2O PLUS unit to a 2-dog or 3-dog system.